Specifications: Detachable Screen: The screen can be detached and used independently. DVR Recording System: For the ability to record flight videos at any time. Double Antenna: To receive a stable and very steady signal. High Brightness Screen: 5-inch size with 800x480 resolution. Auto Search: To search for frequency and channel with one button press (supports 40 channels with RaceBand). Built-in Battery: 2000mAh capacity with a universal USB charging port. The goggles are new in their box. I opened them, took pictures for the ad, and then put them back. Purchase Price: 536 Selling Price: 500